[Asterisk-Users] no sound when connected

[Vlok Stone]

this is my BT100 phone dtmf. Is this correct.Send DTMF:    
in-audio     via RTP (RFC2833)     xvia SIP INFO
i chose sip info 

On Sat, 2004-04-17 at 14:43, Chris Orme wrote:
> Very much sounds like a firewall issue not allowing voice packets back in 
> to you (for the received audio) or them not finding you somehow.
> 
> Think about how do you connect to the internet.  Perhaps 'it' (whatver
> device it is doing firewalling/NAT) is configurable through its bios or a
> web interface or by telnet or ssh.  Depends what 'it' is, but 'it' is
> likely to be involved in the problem.
> 
> You didn't send info of your configuration as to which protocol IAX/SIP
> you are using and how you are trying to connect so I can't give a
> specific answer on how to help you.  Or I didn't read closely enough.
> 
> I guess it might be:
> 
> BT 102 -SIP-> Asterisk on local LAN w/PSTN access/zap cards -SIP??->
> firewall/router -adsl?-> internet -SIP-> Asterisk (2)
> 
> But I don't know as you didn't say :-(
> 
> I know Asterisk went through time when things weren't easy with
> Grandstream phones, I don't know what the current state of affairs are
> and I guess it is all great now if it working now via your Zap.
> 
> www.voip-info.org or using google to search the archives of this list
> might also help, especially if you search perhaps for the name of your
> firewall or router and asterisk or something like one way audio?  This is
> what I did when I started.
> 
> Also if you have available other SIP clients to try on your network and
> some patience I'm certain this can be tracked down and sorted out.
> 
> It might even be something as simple as 'nat=yes' 'host=dynamic'. There
> are lots of sample configs on www.voip-info.org as well as those supplied
> by Asterisk to work through.  Slowly change options from the sample config
> and with patience you get the hang of things :-)
> 
> Hope that helps a little.  Just trying to put something back for all those
> that helped me.
> 
> Good luck.
> 
> Chris
> 
> On Sat, 17 Apr 2004, Vlok Stone wrote:
> 
> > On Sat, 2004-04-17 at 14:01, Chris Orme wrote:
> > > Hi Vlok,
> > > 
> > > When a call connects is the audio one way ?  Can the remote person hear
> > > you but you can't hear them ?
> > yes. 
> > > 
> > > Which way is the audio or is it silent in both directions ?
> > > The echo test?  Is this FWDs echo test or the one running on your
> > > asterisk box (as that is not outside you LAN is it) ?
> > ouside
> > > 
> > > I'm thinking this could be a NAT or firewall issue ?
> > me too. what would i look for. 
> > > 
> > > Maybe you could give more info or a diagram of the set up you have there
> > > so I can have a think about it?
> > > 
> > 
> > > Chris
> > > 
> > > On Sat, 17 Apr 2004, Vlok Stone wrote:
> > > 
> > > > I'm having a sound issue. I'm using BT100 (102). When I dial the echo
> > > > test ( or anything for that matter) outside of my LAN there's no sound
> > > > when it answers although I hear the ringing tones. Is this an RTP or
> > > > codec issue. When I dial through Zap everything is fine. Thanx.
> > > > 
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